diff --git a/README.md b/README.md
index 9b503ba5392110410c9625f16c8c60b4d22be2b6..a2d923347c2fd1823c48a224b64e8f61c1fb7e47 100644
--- a/README.md
+++ b/README.md
@@ -32,7 +32,7 @@ This command specifies the `english` branch and limit the depth of clone, get ri
   * [Union-Find Application](think_like_computer/Union-Find-Application.md)
   * [Find Sebesquence With Binary Search](interview/findSebesquenceWithBinarySearch.md)
   * [Problems can be sloved by one line](interview/one-line-code-puzzles.md)
-  * [How to Find Duplicate and Missing Element.md](interview/Find-Duplicate-and-Missing-Element.md.md)
+  * [How to Find Duplicate and Missing Element](interview/Find-Duplicate-and-Missing-Element.md)
   * [如何判断回文链表](interview/判断回文链表.md)
   
 * II. Data Structure